Chrysanthemum plant named ‘Zanmurowa’

ABSTRACT

A  chrysanthemum  plant named ‘Zanmurowa’ directed by its medium sized blooms with dark red ray florets and prolific branching; natural season flower date September 22–27; blooming for a period of 4–5 weeks.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of chrysanthemum plant, botanically known as Chrysanthemum×morifolium Ramat., and hereinafter referred to by the cultivar denomination ‘Zanmurowa’.

‘Zanmurowa’ is a product of a breeding and selection program for outdoor pot mums (garden mums) which had the objective of creating new chrysanthemum cultivars with a double type inflorescence, a natural season flower date starting at September 22–27; blooming for a period of 4–5 weeks. The new plant of the present invention comprises a new and distinct cultivar of chrysanthemum plant (to be deleted). ‘Zanmurowa’ is a seedling resulting from the crossing of the female parent id 70 and the male parent id 537. Plants of ‘Zanmurowa’ differ from plants of the female parent in growth habit, that of the seedling is more vigorous. Plants of ‘Zanmurowa’ differ from plants of the male parent in inflorescence size, that of the seedling is larger.

The new and distinct cultivar was discovered and selected as a flowering plant by Wilhelmus Bernardus Blom on a cultivated field in Rijsenhout, The Netherlands in 2005. The first act of asexual production of ‘Zanmurowa’ was accomplished when vegetative cuttings were used from the initial selection in 2005 and propagated further in a controlled environment in Rijsenhout, The Netherlands. The new cultivar has been found to retain its distinctive characteristics through successive propagations.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention of a new and distinct variety of chrysanthemum is shown in the accompanying drawings, the color being as nearly true as possible with color photographs of this type.

FIG. 1 shows a plant of the cultivar in full bloom.

FIG. 2 shows the various stages of bloom of the new cultivar.

FIG. 3 shows the various stages of foliage of the new cultivar.

DESCRIPTION OF THE INVENTION

The observations and measurements were gathered from plants grown out door in Rijsenhout, The Netherlands under natural day length and temperature and planted in week 22 in 2008. The natural blooming date of this crop was September 22–27 (week 39) . The average height of the plants was 30 cm. No growth retardants were used. No tests were done on disease or insect resistance or susceptibility. No tests were done on cold or drought tolerance. This new variety produces medium sized blooms with dark red ray florets blooming for a period of 4–5 weeks. From the cultivars known to inventor the most similar existing cultivar in comparison to ‘Zanmurowa’ is ‘Manakin’ (U.S. Plant Pat. No. 11,521). When ‘Manakin’ and ‘Zanmurowa’ are being compared the following difference is noticed: The difference of ‘Manakin’ and ‘Zanmurowa’ are (1) Natural season blooming date. And (2) Size of bloom. (1). The natural season blooming date of ‘Manakin’ is mid-September, while that of ‘Zanmurowa’ is late September. (2). The size of the blooms of ‘Manakin’ is smaller than those of ‘Zanmurowa’.

The following is a description of the plant and characteristics that distinguish ‘Zanmurowa’ as a new and distinct variety.

The color designations are taken from the plant itself. Accordingly, any discrepancies between the color designations and the colors depicted in the photographs are due to photographic tolerances. The color chart used in this description is: The Royal Horticultural Society Colour Chart, edition 2001.

TABLE 1 Botanical Description of Chrysanthemum xmorifolium Ramat ‘Zanmurowa’ Bud Size Small; cross-section 0.6 cm, height 0.4 cm Shape Oblate Texture Pubescent Outside Color Greyed-green 191A Phyllaries Number 22-24, arranged in 3 rows Shape Elliptic Apex Acute Base Truncate Margin Entire Color Upper side: Greyed-green 191A Lower side Greyed-green 191C Length and width 5 mm; 2-3 mm Texture Pubescent Inflorescence Type Double Height 2 cm Diameter 5 cm Peduncle length 9-12 cm Peduncle color Greyed-green 191 C Peduncle diameter 2 cm Peduncle surface Pubescent Number per branch Approx. 6 inflorescences Flowering period individual 4-5 weeks inflorescence Seeds Produced in small quantities, ovate, Greyed-brown 199A, length 1.5 mm diameter 0.8 mm Fragrance Faint chrysanthemum odor Color Center of inflorescences Immature stage: Yellow 9A (disc florets) Mature stage: Yellow 12A (pollen) Color of upper surface of the Greyed-purple 185A ray-florets Color of the lower surface Greyed-red 181B of the ray-florets Tonality from Distance A garden mum with dark red inflorescences and small yellow disc Color of the ray-florets after Greyed-red 181A aging of the plant Ray florets Texture Upper and lower side smooth Number 130-140 Shape Elliptic Apex Mucronulate Base Attenuate Cross-section Flat Longitudinal axis of Straight majority Length of corolla tube 0.3-0.4 cm Ray-floret margin Entire Ray-floret length 1.6-2.7 cm Ray-floret width 2-5 cm Ratio length/width Medium Disc florets Disc diameter 2-3 mm Distribution of disc florets Moderate Shape Tubular Color Yellow 9A at apex, and Yellow 11D at base Number 8-10 Length 0.5 mm Diameter 0.3 mm Receptacle Shape Conical raised Color Green 138C Height 0.5 cm Diameter 0.6 mm Reproductive Organs Androecium Present in disc florets only Stamen length 3 mm Stamen color Yellow-green 144A Anther color Yellow 3A Pollen Moderate Pollen Yellow 12A Gynoecium Present in both ray and disc florets Style color Yellow-green 154C Style Length 3 mm Stigma color Yellow 7A Stigma Width 1 mm Ovary Enclosed in calyx Plant Form Grown as a potmum, outdoor raised and mounded Growth habit Spherical shape Growth rate Medium Height 30 cm Width 40 cm Stem Color Greyed-brown 199A Stem Strength Strong Stem Brittleness Not brittle Stem Anthocyanin Coloration Not observed Internode length 1-2 cm Length of lateral branch From top to bottom 20 cm Lateral branch color Green 137C Lateral branch diameter 2 mm Lateral branch brittleness Medium Branching (average number Prolific with 8 breaks after pinching of lateral branches) Natural season blooming date September 22-27 to late October Foliage Leaf color Upper side: Green 137A Lower side: Green 138A Color midvein Upper side: Yellow-green 147D Lower side: Yellow-green 148D Size Small.; length 3.5-5 cm, width 2-2.5 cm Quantity (number per lateral 22 -24 branch) Shape Elliptic Texture upper side Sparsely pubescent Texture under side Pubescent Venation arrangement Palmate Shape of the margin Serrated Shape of Base of Sinus Rounded Between Lateral Lobes Margin of Sinus Between Diverging Lateral Lobes Shape of Base Attenuate Apex Mucronulate Petiole length 0.5-1 cm Petiole diameter 2 mm Petiole color Yellow-green 147D

TABLE 2 Differences with the comparison variety ‘Zanmurowa’ ‘Manakin’ Natural season blooming date Late September Mid-September Bloom diameter 5 cm 3.5 cm 

1. A new and distinct variety of chrysanthemum plant as described and illustrated. 